ITTC Project


Wireless Network Systems Research

Project Award Date: 10-01-1998



Description

This project examines the behavior of the Adaptive Broadband Ltd. (ABL) Radio ATM (RATM) system in the wireless local loop (WLL) environment. This study focuses on the following aspects of the system: characteristics and behavior of the media access layer, MAC behavior under various channel and interference conditions, and use of mobility-support features and measurement-based adaptation.

Such an understanding of the system might be used, for example, to determine throughput versus range characteristics, or to support modem and antenna design efforts or capacity and access point location planning.

Our method is to characterize system behavior through modeling, and correlate these models with measurements of the RATM system. We will model various layers of the system and its environment in order to explore the performance envelope.

Within these models, we will vary selected characteristics of the system, such as frequency, antenna configurations, transmitted power, modulation schemes, bit rates, and media access layer behavior. We will also vary a number of environmental variables to characterize the behavior of the system in the outdoor environment, such as distance between transmitter and receiver, transmission path conditions, and weather conditions. We will coordinate with the RATM designers to specify in detail the range of variables for each of these system and environmental characteristics. Measurements will be collected as necessary to verify the correctness of the models.

Additional models, measurements and conditions of interest to Adaptive Broadband Ltd. and KU may be pursued as appropriate.

These studies of the RATM systems will be correlated to provide an understanding of the higher layer system behavior.


Investigators

Faculty Investigator(s): Joseph Evans (PI)


Project Sponsors


Primary Sponsor(s): Adaptive Broadband, Ltd.


Partner with ITTC

The Information and Telecommunication Technology Center at the University of Kansas has developed several assistance policies that enhance interactions between the Center and local, Kansas, or national companies. 

ITTC assistance includes initial free consulting (normally one to five hours). If additional support is needed, ITTC will offer one of the following approaches: 

Sponsored Research Agreement

Individuals and organizations can enter into agreements with KUCR/ITTC and provide funds for sponsored research to be performed at ITTC with the assistance of faculty, staff and students.

Licensing and Royalty/Equity Agreement

An ITTC goal is the development of investment-grade technologies for transfer to, and marketing by, local, Kansas, and national businesses. To enhance this process, the Center has developed flexible policies that allow for licensing, royalty, and equity arrangements to meet both the needs of ITTC and the company.

Commercialization Development

Companies with a technology need that can be satisfied with ITTC's resources can look to us for assistance. We can develop a relationship with interested partners that will provide for the development of a technology suited for commercialization.

ITTC Resource Access

ITTC resources, including computers and software systems, may be made available to Kansas companies in accordance with the Center's mission and applicable Regents and University policies.

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